Socket-plug



H T. THOMAS.

SOCKET PLUG.

AFPUCATION FILED MAR. 31,1919.

1,323,659. lmnml im. 10m

[V VEA/TOR /OAC 7.-'7/30/14/15 HORACE T. THOMAS, 0F LANSING, MICHIGAN.

SOCKET-PLUG.

Specification of Letters Patent.

Patented Dec. 2, 1919.

Application led March 31, 1919. Serial No. 286,573.

To all whom z' may concern.'

Be it known that I, HoRAoET. THOMAS, a citizen of the -United States,residing at Lansing, county of Ingham, State of Michigan, have inventeda certain new and useful Improvement in `Socket-Plugs, and de- Clare thefollowing to be a full, clear, and exact description of the same, suchas will enable others skilled in the art to which it pertains to -makeand use the same, reference being had to the accompanying drawin s,which form a part of this specification.

iy invention relates to socket plugs and a specific object of myimprovements is to provide an improved connector for automobile headlight and battery circuits, that may be readily and cheaply assembledand the parts of which shall not readily become loose in use. j

I secure this object in the device illustrated in the accompanyingdrawings in which, j

vFigure l is a section on a plane through the axis of a plug embodyingmy invention.

Fig. 2 is a detached elevation of the connecting wire.

Fig. 3 is a view of the parts shown in Fig. 2 looking from the left ofthe latter figure.

Fig. 4 is a detail sectional view of the.

end of the socket.

Fig. 5 is a side elevation of the parts shown in Fig. 2.

Fig. 6 is an end view of the metal casing.

Fig. 7 is an axial view of the metal casing.

Fig. 8 is a view similar to Fig. 1 showing a modified construction.

a is the usual conducting wire surrounded by insulating material a3 andhaving its end flattened at a2 to form a connecting and retaining means.

b is a cylindrical piece of insulating material having at one end theannular laterally extending iiange b2 and fitting closely over thecovering a3.

c is a metal casing adapted to fit over Y and closely engage theinsulating cylinder b at c3 toward the end remote from the flange b2.The casing c is enlarged and is bent outward at c2 to the diameter ofthe periphery of the flange b2 and it extendsl d is a wire engaging uponthe cylinder b. and having its ends turned outward at right angles at d2d2 to extend through the apertures 03 c3 and project from the casing c.The wire (l extends longitudinally along the outer wall of the cylinderZ) to a point adjacent to the shoulder c2 in the casing c. It thenextends in a semi-circle around said gyliider forming an arc joining twoparts The method of assembling the plug above described is as follows:

The ends cl2 cl2 of the wire l are sprung together and the wire isinserted in the casing 0 with its arcuate portion d4 adjacent to theshoulder c2 and the ends are allowed to spring outward which projectsthem through the apertures 03 c3 of said casing. rlhe cylinder b is nowinserted in the casing. c confining the portions (Z3 (Z3 d4 of the Wired between its outer Wall, the enlarged portion of said casing, theflange b2 and the shoulder o2 so that theprojecting ends projecting endsd2 d2 of the wire d engaging in the slots c2 and the end a? of the wirea. engaging the contact point upon the spring c3.

Obviously two wires may be used, as shown in Fig. 8, instead of one.

What I claim is:

1. In an apparatus of the kind described, a conductor, a covering ofinsulating material around said' conductor, a wire having an outwardlyextending end engaging against the outer surface of said insulatingcover and Ia protecting casing surrounding said wire and said cover, theends of said wire extending through said casing.

2. In an apparatus of the kind described, a conductor, an insulatingcover surrounding said conductor, a wire having its ends bent outward,said wire engaging against the outer surface of said cover and extendingpartly around the same intermediate its out-turned ends, and a casingsurrounding said wire and cover, the ends of said wire extending throughsaid casing.

3. In an apparatus of the kind described,

a conductor, an insulating cover around said conductor, a wire havingoutwardly extending ends engaging against the outer surface of saidcover, the portion of said wire intermediate its ends extendinglongitudinally along the surface of said cover then extending part waylaround said cover, then extending longitudinally along the surface ofsaid cover parallel to the first mentioned longitudinally extendingportion, and a casing surrounding said cover and wire.

4. In an apparatus of the kind described7 a conductor, an insulatingcover around said conductor, a wire having outwardly extending endsengaging against the outer surface of said cover, the portion of saidwire intermediate its ends extending longitudinally along the surface ofsaid cover then extending part way around said cover, then extendinglongitudinally along the surface of said cover parallel to the firstmentioned longitudinally extending portion, a casing surrounding saidcover and wire, said insulating cover being provided with an outwardlyextending flange around one end, said casing engaging the surface ofsaid cover at one end and being enlarged to extend over said wireandextending over the periphery of said flange at the other end, thewalls of said casing being provided with apertures topermit the passageof an outwardly extending end of said wire.

5. In an apparatus of the kind described, a conductor, a coversurrounding said conductor coaxial therewith and having an outwardlyextending iange, a wire engaging against the outer surface of said coverand having. an outwardly extending end, a casing engaging the outersurface of said covering and the outer surface of said flange andsurrounding said wire, its wall being provided with an aperture throughwhich the end of said wire extends for the purpose described.

6. In an apparatus of the kind described, a conductor, an insulatingcover for said conductor coaxial therewith, a wire engaging against theouter surface of said cover and having an outwardly extending end, acasing surrounding said cover and engaging its outer surface andinclosing said wire, the wall of said casing being provided with anaperture through which the outwardly extending end of said wire projectsfor the purpose described.

In testimony whereof I sign this specification.

HORACE T. THOMAS.

